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Finding the Fourth Proportional to 76,940.32, 106,179.82 and 42,948.10

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Solution

The fourth proportional to 76,940.32, 106,179.82 and 42,948.10 is: 59,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,940.32 : 106,179.82 = 42,948.10 : x
  2. Step 2: Convert to fraction form
    76,940.32/106,179.82 = 42,948.10/x
  3. Step 3: Cross multiply
    76,940.32x = 106,179.82 × 42,948.10
  4. Step 4: Simplify right side
    76,940.32x = 4,560,221,527.34
  5. Step 5: Solve for x
    x = 4,560,221,527.34/76,940.32
  6. Step 6: Final answer
    x = 59,269.59

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